Students have spent several days applying the Pythagorean Theorem to find the missing sides of right triangles. Today, students are given triangles with all three side lengths given and they must prove whether the triangle is right or not.

Today, the students take a formative assessment that includes finding the missing sides of triangles, estimating non-perfect square roots, applying the Pythagorean Theorem to real world problems, and using it to find distance between two points on a coordi